.login-bg{
  width: 100%;
  height: 100vh;
  position: relative;
  background-color: rgba(20, 40, 65, .9)!important;
}
.login-div{
  width: 400px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
}

